Osaka University

The University of Tokyo

National Institute of Information and Communications Technology, Incorporated

Advanced Telecommunications Research Institute International

Toshiki Yoshimine

Masayuki Hirata

Takufumi Yanagisawa

Tetsu Goto

Takafumi Suzuki

Youichi Saitoh

Hideo Eda

Hiroshi Yokoi

Shinichi Yoshimura

Yukiyasu Kamitani

Ryu Kato

Testu Goto

Takahito Baba

Yoshihiro Watanabe

Toshiaki Saito

Ryohei Fukuma

Yasushi Terazono

Toshio Yanagida

Kojiro Matsushita

Amami Kato

Masaaki Taniguchi

To allow an implantable device including an electronic circuit to be implanted in the head in a more preferable manner in terms of appearance and safely. This implantable device is used for a brain-machine interface or the like. A casing of an implantable device configured to be implanted in a human head has an outer convexity surface matching an external shape of a resected skull related to at least a craniotomy site of the artificial bone designed in accordance with a skull shape of each person in order to fill the craniotomy site. That is, the outer convexity surface of the artificial bone is provided with two functions: the original function of filling the craniotomy site as the artificial bone and a function of serving as the casing of the implantable device.

Casing of implantable device and implantable device, method for manufacturing casing of implantable device, and method for supporting treatment using implantable device

A machine control device includes: first decoders for estimating, from brain signal information, which one of body movements a user performs or images, based on learning using pairs of movements performed by the user and brain signal information, the body movements going toward one of first to nth body postures; second decoders for estimating from the brain signal information, an correct rate on the body movement estimation, based on learning using pairs of correct rates of the estimation of body movements and the brain signal information; and electric prosthetic arm control section for controlling an electric prosthetic arm to change stepwise its posture between first to nth postures via at least one intermediate posture therebetween, the first to nth postures corresponding to the first to nth body postures. The first decoders perform the estimation only when the estimated correct rate exceeds a threshold. When the first decoders estimate that the body movements goes toward a body posture different from the current one, the electric prosthetic arm control section changes the posture of the machine by performing a part of substeps of change from one of the first to nth body postures toward the posture associated with the body posture toward which the estimated body movement goes. This configuration allows a user to control a brain-signal-based machine to perform a natural movement without a long-term training and much brain information.

Machine control device, machine system, machine control method, and recording medium storing machine control program

An interface device in accordance with the present claimed invention is an interface devicethat intervenes between a measuring meansthat measures brain activities of a subject H and an objectto be controlled, and that comprises a reference signal storing part Dthat stores a brain activity signal measured at a time when the subject H conducts predetermined thinking different from direct thinking in order to control the objectto be controlled in a desired mode as a reference signal, a discriminating partthat compares the brain activity signal measured by the measuring meanswith the reference signal and discriminates whether or not the thinking of the subject H is the predetermined thinking, and a controlling partthat controls the objectto be controlled in the desired mode when the discriminating partdiscriminates that the thinking of the subject H is the predetermined thinking.

Interface device, interface method and control training device by the use of the interface device

With use of three-dimensional data of a brain shape, a mold for forming a sheet-shaped structure having a three-dimensional shape of the gyrus or sulcus surface, or the interhemispheric fissure or interlobar fissure surface is formed. With use of the mold, a sheet-shaped silicone structurehaving a three-dimensional shape of the gyrus or sulcus surface, or the interhemispheric fissure or interlobar fissure surface is formed. An electrodeis arranged on at least one side of the silicone structure. With this configuration, an intracranial electrodein which the electrodeis arranged on the sheet-shaped silicone structurehaving the three-dimensional shape of the gyrus or sulcus surface, or the interhemispheric fissure or interlobar fissure surface can be produced.

Intracranial electrode and method for producing same

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Suita, Japan

Toshiki Yoshimine